Buncombe, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Buncombe in?

Buncombe is in Johnson County, EPA Zone 2.

Q: How much does radon mitigation cost in Buncombe?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Johnson County

EPA Zone 2

Deep in southern Illinois, Buncombe sits in Johnson County where Shawnee Hills sandstone and shale formations generally produce lower radon levels than northern Illinois. Testing data for this 62912 zip code remains limited, though the geological setting suggests moderate radon potential. Even in areas with typically lower readings, individual homes can still experience elevated radon levels requiring professional testing.

Buncombe, IL Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Buncombe, IL Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Buncombe Radon Facts

Key details about the radon risk profile for Buncombe and the 62912 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Johnson County, IL

Zip Code

62912

Predicted Screening Level

2–4 pCi/L (Zone 2)

Buncombe and the 62912 zip code are located in Johnson County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Buncombe, IL

What EPA Radon Zone is Buncombe in?

Buncombe and the 62912 zip code are in Johnson County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Buncombe?

Radon mitigation in Buncombe typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Buncombe?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Illinois

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Buffalo Grove	6.10 pCi/L	10
Crystal Lake	7.25 pCi/L	8
Lake Zurich	6.00 pCi/L	7
Grayslake	5.00 pCi/L	7
New Lenox	10.17 pCi/L	6
Park Ridge	7.00 pCi/L	6
Arlington Heights	6.17 pCi/L	6
Waterloo	9.20 pCi/L	5
Palatine	7.80 pCi/L	5
Round Lake	7.80 pCi/L	5
Northbrook	6.20 pCi/L	5
Mchenry	11.00 pCi/L	4
Dekalb	8.75 pCi/L	4
Columbia	8.00 pCi/L	4
Lisle	7.25 pCi/L	4
Normal	7.25 pCi/L	4
Antioch	7.00 pCi/L	4
Elk Grove Village	7.00 pCi/L	4
Aurora	6.75 pCi/L	4
Hoffman Estates	6.75 pCi/L	4